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In conclusion, allow me to thank you for your own advice and assistance during the course of the work, and the other members of my party for their attention to the work in hand and general willingness to carry out every duty assigned to them.

Yours respectfully,

Wm. Kennedy,
Assistant Geologist.

REPORT OF MR. J. A. TAFF.

AUSTIN TEXAS, December 31, 1891
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Mr. E. T. Dumble, State Geologist:

DEAR SIR—I have the honor to submit herewith an administrative report upon the work given in my charge during the year.

It was necessary that further investigations be made upon the geology of the Trinity, Glen Rose, and Paluxy beds, which compose the Bosque division, in order to better determine their stratigraphic and toxonomic relations to each other. Accordingly I took the field April 15, 1891, and made careful sections across these rocks along the valleys of the Bosque river in Erath, Hamilton and Bosque counties, Brazos river in Parker county, South Fork of Trinity river in Parker county, and the West Fork of Trinity river in Wise county. The work was finished May 8th, 1891, and the results are incorporated in my account of the geology of the Bosque Division. In this connection, credit is due Mr. N. F. Drake and Mr. C. C. McCulloch who worked with the writer upon these rocks in the season 1889.

According to your direction, I with Mr. S. Leverett, as geological assistant, and Mr. J. W. Black as aid, began the study of artesian water conditions of southwest Texas, more especially that portion south of the Southern Pacific Railway. Investigation was taken up along the line of the Mexican National from Corpus Christi to Laredo, beginning May 27th, 1891, thence to Cotulla along the International and Great Northern Railway, and thence up the Nueces and Leona river valleys to Montell, Uvalde county. Vast deposits of post-Tertiary drift, composed of silt, gravel, boulders, and tufaceous lime so obscure the rock which govern flowing wells in a great portion of this region, that satisfactory estimates could not be made for sources of artesian water and depths for flowing wells.. Much data was obtained, but, knowing that further investigation is to be carried on in this field in the coming season, it awaits a fuller account than can now be given.

The line of parting between the Upper and Lower Cretaceous was traced from the Nueces river valley to Austin, also a study was made